Printing-machine.



QM.H.MANN.

PRINTING MACHINE.

APPLICATION rmm APR. 22, 1910.

982,515. Patented Jan. 24, 1911.

UNITED STATES PATENT OFFICE.

MILES I-I. MANN, OF LOUISIANA, MISSOURI, ASSIGNOR TO BUFFUM TOOLCOMPANY, OF LOUISIANA, MISSOURI, A CORPORATION OF MISSOURI.

PRINTING-MACHINE.

Specification of Letters Patent.

Patented Jan. 24, 1911.

Original application filed. December 27, 1909, Serial No. 535,159.Divided and this application filed April 22, 1910. Serial No. 557,060.

To all whom it may concern:

Be it known that I, MILES H. MANN, a citizen of the United States,residing at Louisiana, Missouri, have invented a certain new and usefulImprovement in Printing-Machines, of which the following is a full,clear, and exact description, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to printing machines, and particularly toprinting machines of the type shown in my prior Patent No. 896,062,dated August 11, 1908, the present application being a division of myallowed application Serial No. 535,159, filed December 27, 1909.

The object of my present invention is to provide means of novelconstruction for taking up the wear on the reciprocating member to whichthe type-carrier is con nected.

Figure 1 is a side elevational view of a portion of a printing machineconstructed in accordance with my invention; Fig. 1 a vertical sectionalview taken on the line w0c of Fig. 1. Fig. 2 is a horizontal sectionalView taken on approximately the line 22 of Fig. 1; and Fig. 3 is aperspective view of one of the adjustable wearcompensating devices onthe actuating member for the type-carrier.

Referring to the drawings which illustrate the preferred form of mypresent invention, A designates the typo-carrier of the machine, and Bdesignates a vertically reciprocating plunger or actuating member thatis provided at its lower end with a head C to which the type-carrier isconnected. The yoke D on the type-carrier plunger B is alanged betweenstationary side guides l, as shown in Figs. 1 and 2, and the portions ofsaid plunger which lie above and below the yoke D, respectively, passthrough a stationary guide 2 and a stationary guide 2 that extendstransversely between the two side guides 1, as shown in Fig. 1. Thecontinuous sliding movement of the yoke on the side guides 1 tends tocause said parts to wear away quickly and I have therefore provided oneof said parts with a movable section or device that can be adjusted soas to compensate for this wear and prevent said parts from workingloose.

In the preferred form of my invention, as herein shown, the yoke D isprovided with two disk-shaped plugs or sections 3 that are arranged inrecesses in the side faces of the yoke D so that they will bear againstthe inside faces of the side guides 1, as shown in Fig. 2, and anadjusting screw 4 is mounted in the yoke for moving said plugs outwardlyinto intimate engagement with the side guides 1 and thus prevent theyoke from working loose. The screw 4; is provided with a pointed end, asshown in Fig. 2, that cooperates with inclined surfaces 5 on the innerends of shanks 3 that project inwardly from the movable sections orplugs 3, said adjusting screw acting as a wedge that moves both of theplugs 3 outwardly when. the screw is turned in one direction. Anysuitable means can be employed for locking the screw 4; in its adjustedposition, such, for example, as a lock nut 6, and while I have hereinstated that the yoke is provided with a pair of adjustablewear-compensating devices, I do not wish it to be understood that myinvention is limited to this exact construction for my bread ideaconsists in providing either the yoke or the side guides with one ormore movable sections that can be adjusted to compensate for wear. Theoperating cam E that is arranged inside of the yoke 1) tends to causethe lower side of the yoke to wear quickly and I have therefore providedthe lower side of the yoke with a removable wear plate 7 that isretained in position by means of a fastening device 8, as shown in Fig.1.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. In a printing machine, a type-carrier plunger provided intermediateits ends with a yoke, a cam arranged inside of said yoke for actuatingsaid plunger, guides for the portions of said plunger WlllCll project inopposite directions from said yoke, side guides between which said yoketravels, a movable section arranged in one of the guide-engaging facesof said yoke and lying approximately flush with said face, said sectionbeing of less area than the face of the yoke in which it is mounted, andmeans for moving said section outwardly into intimate engagement withthe side guide arranged adproximately flush with said side faces, in-

jacent thereto so as to compensate for the wear on said yoke and sideguides.

2. In a printing machine, a type-carrier plunger provided intermediateits ends with a yoke, a cam arranged inside of said yoke for actuatingsaid plunger, guides for the portions of said plunger which project inopposite directions from said yoke, side guides between which said yoketravels, a movable section arranged in one of the guide-engaging facesof said yoke and lying approximately flush with said face, a shank onsaid movable section provided wit-h an inclined surface, and anadjusting device carried by the yoke and bearing against the inclinedsurface on said shank for moving said section outwardly into intimateengagement with the side guide arranged adjacent thereto.

3. In a printing machine, a type-carrier actuating member provided witha yoke, side guides between which said yoke travels, disk-shaped devicesarranged in recesses in the side faces of said yoke and lying apwardlyprojecting shanks on said'disks provided with inclined faces, and anadjusting device carriedby the yoke and having a tapered end whichengages the inclined faces on said shanks and thus moves said devicesoutwardly to compensate for wear.

4. In a printing machine, a type-carrier actuating member provided witha yoke, side guides between which said yoke travels, a plurality ofmovable sections set in recesses in the guide-engaging faces of theyoke, in- 1 wardly projecting shanks on said movable sections providedwith inclined ends, and an adjusting screw provided with a tapered endthat projects between the inclined ends of said shanks.

5. A printing machine provided with a type-carrier actuating member, ayoke on said member, side guides between which said yoke travels, aplurality of movable sections arranged in the guide-engaging faces ofsaid yoke and lying approximately flush with said faces, a device foradjusting said movable sections simultaneously to compensate for Wear,and means for locking said adjusting device in position.

6. A printing machine provided with a type-carrier, a plunger connectedto said type-carrier and provided with a yoke, an operating cam arrangedin said yoke, a removable wear plate arranged inside of said yoke so asto form a bearing surface for said cam, side guides between which saidyoke travels, movable wear-compensating devices set flush in theguide-engaging faces of said yoke and being of less area than saidfaces, and means for moving said devices out-- wardly into intimateengagement with said side guides.

In testimony whereof I hereunto afliX my signature in the presence oftwo witnesses, this 16th day of April, 1910.

MILES H. MANN.

Vitnesses RAE PEARSON, EUGENE PEARSON.

